SmartLine DeviceLock NTFS ACL bypass
| devicelock-acl-security-bypass (28384) |  Medium Risk |
Description:
SmartLine DeviceLock could allow a local attacker to bypass NTFS ACL security restrictions, caused by a design error in the implementation of DeviceLine ACLs. If the DeviceLock ACL on a partition consists of only Allow entries, the \Device\HarddiskX\PartitionY kernel object is set to Everyone: FullAccess. This could allow a local attacker to gain unauthorized read and write access to all the files on the affected partition.
Note: If the ACL on a partition consists of only Deny entries, the kernel object is set to Everyone: DenyFullAccess, denying all access to every user including the administrator and system account.
Platforms Affected:
- SmartLine, DeviceLock 5.73
Remedy:
Upgrade to the latest version of SmartLine DeviceLock (5.73 Build 305 or later), available from the SmartLine DeviceLock Web site. See References.
Consequences:
Bypass Security
References:
- BugTraq Mailing List, Sun Aug 13 2006 - 05:26:26 CDT , Local privilege Escalation in SmartLine DeviceLock 5.73 at http://archives.neohapsis.com/archives/bugtraq/2006-08/0282.html.
- SmartLine DeviceLock Web site, Endpoint device Security: DeviceLock controls USB and other devices via Group Policy at http://www.protect-me.com/dl/.
- BID-19500: SmartLine DeviceLock Unauthorized Access Vulnerability
- CVE-2006-4184: SmartLine DeviceLock before 5.73 Build 305 does not properly enforce access control lists (ACL) in raw mode, which allows local users to bypass NTFS controls and obtain sensitive information.
- SA21494: DeviceLock Device Object Improper Restriction Weakness
Reported:
Aug 13, 2006
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